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McMillan USMC M40A3 SportLine Airsoft Sniper Rifle by ASG (Color: Black)

ID: 66940 (SR-ASG-50132)
4.5 stars, based on 30 reviews
McMillan USMC M40A3 SportLine Airsoft Sniper Rifle by ASG (Color: Black)
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Optic and bipod not included
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MAP ProtectedExempt From Coupons
The manufacturer of this product enforces a strict minimum advertised price (MAP) policy which excludes this product from any additional discount coupon codes. This item, however, may qualify for free shipping.
Canada Export CompliantCanadaExport Compliant
This gun has a muzzle velocity rating (FPS) between 366 and 500, and is compliant for export to Canada.


  • Fully licensed by McMillan Group International
  • Authentic 1:1 replica of the M40A3 fielded by USMC snipers
  • Aluminum barrel and receiver
  • High strength polymer stock
  • 20mm bipod rail (bipod sold separately)
  • Polymer 20rd magazine
  • 20mm optic rail
  • Smooth bolt and trigger pulls (Adjustable trigger pull and bolt stroke)

FPS Range: 410-420

The M40, known for its years of service in the hands of US Marines, began its life as a modified military type-classified version of the Remington M700 bolt action rifle. Later in its progression came the development of fiberglass A1 style stocks made by McMillan. The M40A3 began its development in the mid 90's and entered service in 2001 during Operation Enduring Freedom. Over its years of use the M40 has maintained a solid reputation for reliability and precision.

Length: 1130mm
Inner Barrel: 475mm
Weight: 3400g
Magazine Capacity: 20rds
Muzzle Velocity: 410-420 (Measured with 0.20g BBs)
Fire Modes: Single shot, safety
System: High power spring
Package Includes: Gun, Magazine, Manual
Hopup: Yes, Adjustable

Manufacturer: ASG (Licensed by McMillan Group International)

ASG Limited Manufacturer Warranty:

This Sportline airsoft gun is backed by a 9 month limited warranty from ActionSportGames. Should this airsoft gun fail due to a defect in material or workmanship during the warranty period, ActionSportGames will repair or replace it, free of charge. Please see the included warranty card for warranty details.

About ASG

ActionSportGames is a worldwide leader in the business of replica firearms and accessories manufacturing – including Airsoft guns, Airguns, CO2 guns and firearms replicas. We specialize in 1:1 scale replica guns and accessories for fun, action, sports, entertainment and collection. Today were proud to be recognized as the innovator and manufacturer of the CZ EVO3 A1 AEG and having introduced several Airsoft versions of this popular Airsoft gun to the market.One of our goals is to become the preferred supplier in the firearms replica business through worldwide license agreements, quality brands and premium service – before, during and after sales.

30 Customer Reviews

(Write a review)

by Nate C. on 10/08/2019
"Great beginners sniper and very upgrade friendly. Its weight can be reduced by removing 3 metal cylinders, 2 in the stock and one near the mag well once the gun is opened. Overall it's a great rifle and I would highly recommend this to anyone who wants to start airsoft sniping, it can easily reach 100ft with .32s.
by Ron G. on 07/26/2019
"Got this gun expecting a piece of trash sniper. The stock feels cheap but the gun performs amazing. For 80-90 bucks I can easily hit a man sized target at 300ft about 7 out of 10 times. I was using .28 gram bbs and magpul mbus gen 2 iron sights for this test. It perfectly hops .28 gram bbs only putting the hop up lever 1/4 away from no hop. If you were to turn the hop up all the way then I think it could hop .40 gram bbs easily. Fps isn't super high but accuracy is what counts. Mags are cheap at $12. The bottom rail is plastic but the top one is metal. It has a light average length trigger pull. Easy to cock. Let my 8 year old female cousin try and she was able to pull the bolt back easily. The green looks nice. Nice weight to it. Can be lightened by taking out the weight in the front of the stock. 3 allen bolts hold on trigger assembly, barrel and reciver. Comes with allen wrenches. Love this gun.
by Bryson J. on 07/08/2019
"I ordered this gun after seeing all the good reviews airsoft Youtubers were giving it. After a few hundred shots in my backyard, it still shoots at 400-450 FPS. It is an amazing gun for $80 and out performs other snipers. It shoots straight at long distances, and the hop-up is extremely easy to use. The mags hold a pretty good amount of ammo and I've had no feeding problems. Even though the body is made out of polymer, if you take care of this gun, it will last you a long time. I recommend this gun for anyone that wants to get into sniping or just wants to have a very affordable, very good sniper. I give it a 10/10

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